Explore maps of the Commonwealth of Australia and other regions colored with colors to ensure no adjacent areas share the same color. Verify the -color theorem for various maps. Learn geography and discover historical references to Martin Gardner.
Shogi Demon is Japanese Chess where captured pieces can be reused. Pieces can be promoted to increase movement range when entering the opponent's zone.
The app is a puzzle game where the objective is to stop a specific piece on the center space. All puzzles have solutions and feature pieces that move until blocked or off the board.